package thread;

import org.w3c.dom.ls.LSOutput;

public class ThreadDemo1 {
    public static void main(String[] args) {
        Thread t1 = new MyThread1();
        Thread t2 = new MyThread2();
        t1.start();
        t2.start();
    }
}
class MyThread1 extends Thread {
        public void run() {
            for (int i = 0; i < 1000; i++) {
                System.out.println("你是谁啊？");
            }
        }
    }

    class MyThread2 extends Thread {

        public void run() {
            for (int i = 0; i < 1000; i++) {
                System.out.println("开门，查水表的");
            }
        }
    }
